INDEX 



605 



NACCARATI. Saxte. Contribution to the 

 morphologic study of the thyreoid gland 



in Emys europaea 279 



Necturus maculatus. The morphology of the 



ribs and transverse processes in 537 



Necturus. The cloaca and cloacal glands of 



the male 447 



Neuromeres and head segmentation. Pri- 

 marj- 331 



ORGANIZATION of the tadpole larva. 

 Amaroucium constellatum (Verrill). 



II The structure and 71 



Origin and developmens of the light-organs 

 of Photurus pennsylvanica De Geer 245 



PARACOPIDOSOMOPSIS. The develop- 

 ment of 1 



Patterson, J. T. The development of 

 Paracopidosomopsis 1 



Petrcnkevitch, Alexander. The circula- 

 tory system and segmentation in Arach- 

 nida 157 



Photurus pennsylvanica De Geer. Origin and 

 development of the light-organs of 245 



Phylogeny ofjthe shell of the Testudinata and 

 therelationshipsof Dermochelys. On the 421 



PiNNET. Edith. The initial block to normal 

 development in cross-fertilized eggs. I. 

 Crosses with the egg of Fundulus. II. 

 Reciprocal .crosses between Ctenolabrus 

 and Pronotus 401 



Primary neuromeres and head segmentation . 331 



Prionotus. The initial block to normal 

 development in cross-fertilized eggs. I. 

 Crosses with the egg of Fundulus. II. 

 Reciprocal crosses between Ctenolabrus 

 and 401 



Processes in Necturus maculatus. The 

 morphology of the ribs and transverse. . . . 537 



RECIPROCAL crosses between Ctenolabrus 

 and Prionotus. The initial block to 

 normal development in cross-fertilized 

 eggs. I. Crosses with the egg of Fundu- 

 lus. II 401 



Ribs and transverse process in Necturus 

 maculatus. The morphology of the 537 



SECONDARY sexual characters of elasmo- 

 branch fishes — the claspers, clasper 

 siphons, and clasper glands. Memoir III. 

 The comparative morphology of the 191 



Secondary sexual characters of Holocephali 

 and elasmobranch fishes— the claspers 

 clasper siphons, and clasper glands. 

 Memoir IV. The comparative morphol- 

 ogy of the 199 



Seconday sexual characters of Holocephali and 

 elasmobranch fishes — the claspers, clasper 

 siphons, and clasper glands. Memoir V. 

 The comparative morphology of the 221 



Segmentation in .Arachnida. The circulatory 



system and 157 



Segmentation. Primarv neuromeres and 

 head " 331 



Sexual characters of elasmobranch fishes — the 

 claspers, clasper siphons, and clasper 

 glands. Memoir III. The comparative 



morphology of the secondary 191 



Sexual characters of Holocephali and elasmo- 

 branch fishes — the claspers, clasper 

 siphons, and clasper glands. Memoir IV. 

 The comparative morphology of the 

 secondaiy 199 



Sexual characters of Holocephali and elasmo- 

 branch fishes — the claspers, clasper 

 siphons, and clasper glands. Memoir V. 

 The comparative morphology of the 

 secondary 221 



Shell of the Testudinata and the relationships 

 of Dermochelys. On the phylogeny of the 421 



Siphons, and clasper glands. Memoir III. 

 The comparative morphology of the 

 secondary sexual characters of elasmo- 

 branch fishes — the claspers, clasper 191 



Siphons, and clasper glands. Memoir IV. 

 The comparative morphology of the 

 secondary sexual characters of Holocephali 

 and elasmobranch fishes — the claspers, 

 clasper 199 



Siphons, and clasper glands. Memoir V. 

 The comparative morphology of the 

 secondary sexual characters of Holo- 

 cephali and elasmobranch fishes — the 

 claspers, clasper 221 



Smith, Bertram G. The origin of bilateral 

 symmetry in the embryo of Crypto- 

 branchus allegheniensis 357 



Structure and di\-ision of Trichomonas muris 

 (Hartmann). The 119 



Structure and organization of the tadpole 

 larva. Amaroucium constellatum (V'er- 

 rill). II. The.. 71 



Study of the thyreoid gland in Emys europaea. 

 Contribution to the morphologic 279 



Stunkard, Hor-^ce W. Primary neuromeres 

 and head segmentation 331 



Symmetry in the embryo of Cryptobranchus 

 allegheniensis. The origin of bilateral. . . . 357 



System and segmentation in Arachnida. 

 The circulatory 157 



TADPOLE larva. Amaroucium constella- 

 tum (Verrill). II. The structure and 

 organization of the 71 



Termopsis The castes of 495 



Testudinata and the relationships of Dermo- 

 chelys. On the phylogeny of the shell of 

 the 421 



Thompson, Caroline BrRLiNc. The castes 

 of Termopsis 495 



Thyreoid gland in Emys europaea. Contri- 

 bution to the morphologic study of the. . . 279 



Transver.se processes in Necturus maculatus. 

 The morphology of the ribs and 537 



Trichomonas muris (Hartmann). The struc- 

 ture and division of 119 



Turtles. Branchial derivatives in 299 



W ENRICH, D. H. The structure and 

 division of Trichomonas muris (Hart- 

 mann) 119 



